Miter-box.



Patented May 30, 1916.

0. H. FISK.

Y MITER BOX.

APPLlcAloN man Jun/1s, me.

www@

OTIS I-I. FISK, OF CINCINNATI, OI-IIO.

MITER-BOX.

' resident of Cincinnati, county of Hamilton,

State of Ohio, have invented certain new and useful Improvements in Miter-Boxes, of which the following is a specification.

This invention relates to improvements in miter boxes and has for an object to produce a miter box in which improved means are employed for measuring the length of the piece to be cut.

A further object is to produce a miter box in which improved means are employed for limiting the depth of the saw cut.

A further object is to produce an improved miter box in which means are provided for supporting work of greater length than would be supported by the work-supporting table of the miter box.

A further object is to produce an improved miter box` in which means are employed for preventing the saw dust from collecting upon and thereby lcausing binding and wearing of the moving parts of the miter box.

These and other objects are attained in the miter box described in the following specification and illustrated in the accompanying drawings, in which;

Figure l is a plan view of the miter box embodying my invention. Fig. 2 is an end elevation of the miter box illustrated in Fig. 1, with certain portions removed for convenience of illustration. Fig. 3 is a fragmental elevational view looking in the direction of the arrow A in Fig. l. Fig. 4L is a fragmental elevational view looking in the direction of the arrow B in Fig. 1. Fig. 5 is a fragmental elevational view lookingin the direction of 'the arrow C in Fig. 1. Fig. 6 is a side elevation of the length gage of the miter box embodying my invention.

The miter box herein described and illustrated in the accompanying drawings embodies a construction similar to that shown and described in my Patent Number 1,026,086, granted May 14, 1912, and comprises a frame 7 having a bed 8 mounted thereon, with saw guide support sleeves 9 and 10 located on the sides of the frame. The table 8 is preferablyV made of wood so that when the piece which is being operated upon is cut through, the teeth of the saw will not be injured by coming into contact with the surface of the table. In the face Specification of Letters Patent.

Application filed .Tuly 16, 1915.

lend of the table.

Patented May 30, 1916.

serial No. 40,170.

of the table and extending therethrough, are a series of apertures 11 adapted to receive clamps 12 in convenient adjusted positions for holding the work mounted on the table, as described in my above mentioned patent. In addition to these apertures extending from the top face to the bottom face of the table, are a series of longitudinally extend ing holes 13 adapted to receive correspondingly shaped rods 14 of extensible work supports 15, the head 16 of each one of which is provided for supporting the work mounted on the table. Two sets of longitudinal bores or holes are provided, the set 13 being provided to receive the adjustable work support 15 and another set 13a being provided to receive the same or van additional work support mounted at the other The top surface of the block or head 16 is so mounted as to be in a plane with the top of the table 8 and each support is adjustable in the holes 13 for the purpose of adapting the miter box to sup port work of varying lengths.

In addition to receiving the work supports the holes 13a are adapted to receive the correspondingly shaped bar 17 of a length gage 18, the graduated bar 19 of which is located above the table and adapted to indicate the length of the work to be cut 0E. This length gage is so constructed that it may be used either when the work supports are mounted in the holes of the table, or as shown in Fig. 1 when only one work support is in position. For the purpose of securing the length gage against displacement from its adjusted position, I have provided clamping screws 20 mounted at each end of the table and adapted to engage the bar 17 of the gage when it is located in its proper hole 13a at either end of the miter box and adjacent to the back plate 8a of the frame. In using the length gage the distance frointhe inner surface of the block 19a to the end of the table, as indicated on the graduated bar 19, gives the length of the piece to be cut off when its end is brought into engagement with the block 19b at the opposite end of the bar 19.

The sleeve 9 is preferably built as a part of the frame casting of the miter box and is adapted to support the saw guide 21 in such a manner that the guide may rotate in the sleeve as well as reciprocate longitudinally of it. The sleeve 10 is however, movably .mounted on the front of the frame 7 by ,ec formed' on the sleeve 9]' so`VV that the downward 'Y Vmovement offthe saw guide 21 will be ar- Y means oftwo T'headed bolts 22 mounted in T slots 23 formed in the front face of the frame and extending longitudinally thereof.VV

`Ihe threaded ends ofthese T headed bolts 22passthrough flanges 24. formed as an in-l tegral part of the'sleeve 10, fand areV adapted Vto be tightened by means of thumb nuts 25 to hold the sleeve in its adjusted positions along'the frontof the frame. The sleeve 10 is provided with a mark adapted to reglister with graduations 26 provided on the top 'edge of the frame, for the purpose of indicating the angle to which the saw guide 27 mounted in the sleeve 10, is moved with vrelation Vto theV saw guide 21 mounted in the sleeve'Q. .This construction and manner of adjustably" mounting the sleeve 10 as well as the saw guides in their respective sleeves,

is more 'specically described in my above' sleeves are moved farther apart when increasing the angular movement of the sleeve 10 with'relation to the sleeve 9. rIhis construction is also similar to the construction disclosed in my ,above mentioned patent,

with the exception that the sleeves 32 and 33 have been provided for rendering the rod 31 `more rigid and more capable Vof maintainin gfthe slots in thesaw guides in perfect falineinent In addition to this the bearing vin each fsawV guide is increased and the tendency'for inaccuracyy to enter into the Vopera? tionof the construction after a shorttime 1s eliminated sinceA the wear Yis materially reduced. I 'l Y In addition to thelength gage above de-V scribed :I have provided a depth gage 'for limiting the downward movement of the saw guides and consequently of the saw. By

Y means `ojf this gage the depth of'cut-.in the pieeezis regulated and the cuts are made of uniform depth where a'series of them'are to be made as in dove-tailingzand mortising. The depthgageV consists cfa bar 3a having an,elongated .slot 35 through which Yare passed screws'36 into the sawpguide '21 for the purpose oijadjustably securing the bar Y 3 4 inrits adjusted positions. Y The lower'end of the Vvbar is adapted to abut-a shoulder 37 Y iiopieajef-'this:patent'may be obtaindfor ve cents each, byva'ddressing l l' 5.,', iWashngtom-Dfa Ycertain depth.

rested when the end ofthe bar 3l engages the shoulder as the saw cuts through the material supported on the table V8. This Vwill limit the downward movement of the saw and prevent it from cutting below a The upper end of the bar 34; is graduated as shown in Fig. 5 so that when the bar is adjusted with relation to the saw guide, it will permit of the guide dropping only a predetermined distance. In this manner the depth of out may be accurately controlled. A similar depth gage may be put uponv sleeve 27. Surrounding the saw guide 21 the sleeve 9 at its upper end is provided with a conical extension 38 which inclines outwardly toward the shoulder 37 and is adapted to remove and direct any saw dust which may have accumulated on the surface of the saw guide, away `from the guide,'thereby preventing the saw dust from entering between the guide and the sleeve and causing it to bind in the sleeve as well as 'to increase the wear `between the guide and the'sleeve. A similar bevel is placed upon sleeve 10.

My improved miter box herein described embodies those improvements consistinv` of Vthe adjustable work supports, the adjustable length gage, the adjustable depth gage, the saw dust shield, and the sleeves Jfor mounting the slot alining rod connecting the saw guides,'over the construction described in my above mentioned patent. It is apparent therefore that in the present application I am seeking protection on these i1nprovements to `the l-miter box construction covered in my Patent Number 1,026,086.

Having :thus described my invention, what I claim is: c

In combination in a miter box, a frame, a work supporting table mounted on the frame, a sleeve having a tapered end mounted on the frame adjacent to one side of the work supporting table, a saw guide rotatively mounted inv and longitudinally movable of the sleeve, a second sleeve having a ltapered end movably mounted on the frame adjacent to the opposite side of the table, a second saw guide rotatively mounted in and longitudinally movableoi:l the second sleeve, means for locking the second sleeve in. adjusted positions on the frame, sleeves rigidly mounted transversely in the saw guides, an'd a bar slidably mounted in the sleeves and connecting the guides.

In testimony whereof I have hereunto subscribed my name this 9th day of July,

' Y vOTIS iI-I. FISK.

Witnesses WALTER F.v MURRAY, 17V. THORNTON BoenR'r.`

the Commissioner 'of Patents, 

